Engine Error, Alpha 23

Summary:
An engine error came up as I was deleting some farm plots.

release-790 (x64)
stonehearth/components/crafter/crafter_component.lua:277: Adding crafted item to pack, but not carrying anything? very odd!
stack traceback:
[C]: in function ‘assert’
stonehearth/components/crafter/crafter_component.lua:277: in function ‘?’
stonehearth/ai/actions/call_method.lua:36: in function <stonehearth/ai/actions/call_method.lua:25>
[C]: ?
[C]: ?
[C]: ?
[C]: ?
[C]: in function ‘run’
stonehearth/services/server/tasks/task_action.lua:196: in function <stonehearth/services/server/tasks/task_action.lua:193>
[C]: ?
[C]: ?

[C]: in function ‘run’
stonehearth/components/ai/ai_component.lua:515: in function <stonehearth/components/ai/ai_component.lua:499>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:66: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:499: in function ‘_thread_main’
stonehearth/services/server/threads/thread.lua:273: in function <stonehearth/services/server/threads/thread.lua:270>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:66: in function ‘xpcall’
stonehearth/services/server/threads/thread.lua:270: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

Version Number and Mods in use:
Alpha 23, release 790, no mods.
System Information:
Intel® Core™ i3-6100 CPU @ 3.7 Ghz
8 GB Ram
64 Bit
Windows 10

Here’s another. I’d like to know what the issue is, if I can fix it.

release-790 (x64)
…hearth/components/scaffolding/scaffolding_region.lua:791: attempt to index field ‘_owning_scaffolding’ (a nil value)
stack traceback:
radiant/modules/commons.lua:46: in function ‘report_traceback’
radiant/modules/commons.lua:57: in function <radiant/modules/commons.lua:51>
…hearth/components/scaffolding/scaffolding_region.lua:791: in function ‘instance’
radiant/modules/events.lua:291: in function <radiant/modules/events.lua:285>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:66: in function ‘xpcall’
radiant/modules/events.lua:285: in function <radiant/modules/events.lua:251>
[C]: in function ‘destroy_entity’
radiant/modules/entities.lua:89: in function ‘destroy_entity’
stonehearth/services/server/build/ladder_builder.lua:140: in function <stonehearth/services/server/build/ladder_builder.lua:121>
[C]: in function ‘destroy’
stonehearth/services/server/build/ladder_manager.lua:71: in function ‘_destroy_builder’
stonehearth/services/server/build/ladder_builder.lua:466: in function ‘_check_if_valid’
stonehearth/services/server/build/ladder_builder.lua:323: in function ‘_update_build_mode’
stonehearth/services/server/build/ladder_builder.lua:112: in function <stonehearth/services/server/build/ladder_builder.lua:111>